Messages in this thread |  | | | Date | Mon, 20 Jul 2009 15:09:35 -0700 | | From | Ben Greear <> | | Subject | Error mounting FC8 NFS server with 2.6.31-rc3 NFSv4 client. |
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I tried mounting an NFS server running FC8 (2.6.26.8-57.fc8 kernel) using a Fedora 11 system running an un-patched 2.6.31-rc3 64-bit kernel.
I am not sure at all that the FC8 system is set up to handle NFSv4 properly, but I was expecting some sort of useful error if that was the case.
Instead, I get this continually spewing to /var/log/messages:
Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 Error: state manager failed on NFSv4 server 192.168.100.6 with error 2 ...
On the file-server, I see this: Jul 19 04:47:59 fs2 kernel: nfs4_cb: server 192.168.100.196 not responding, timed out Jul 19 04:49:29 fs2 kernel: nfs4_cb: server 192.168.100.196 not responding, timed out Jul 19 04:49:29 fs2 ntpd[2585]: kernel time sync status change 0001 Jul 19 04:50:59 fs2 kernel: nfs4_cb: server 192.168.100.196 not responding, timed out
I added some debug patches (on top of my other patches, including those to nfs) and got some debug info:
It seems that nfs4_init_clientid is returning -2, and establish_clid is returning -2. This causes reclaim lease logic to fail, and that causes state manager to print out the error repeatedly. -2 means ENOENT.
As far as I can tell, the mount never completes, staying in D state and filling up logs (I deleted a 16GB /var/log/messages file a few minutes ago!)
The mount command I'm trying is: mount -t nfs4 192.168.100.6:/export/tmp /mnt/lf/nfs4-0
My kernel config is found here: http://www.candelatech.com/oss/i7_config.txt
Thanks, Ben
-- Ben Greear <greearb@candelatech.com> Candela Technologies Inc http://www.candelatech.com
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